PK17319: DFHSM0002 SEVERE ERROR (CODE X'030D') HASOCCURRED IN MODULE DFHSMGF.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• DFHSM0002 A SEVERE ERROR (CODE X'030D') HAS OCCURRED IN DFHSMGF
  The reason of SM0002 is QPH chain for LI_PLB contains the
  TIOA overlay leads to subsequent overlay of QPH.
  WCC (write control character) is invalid. this causes a QPH to
  be overlayed with the QPH of another type of storage.
   :
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All.                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: DFHSM0002 severe error code X'030D'     *
  *                      in module DFHSMGF.                      *
  *                      Storage overlays can occur when         *
  *                      sending a BMS map containing extended   *
  *                      attributes to a 3270 terminal which     *
  *                      does not support these attributes.      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  DFHTPR may in some cases perform a segmented write for a
  3270 terminal in error because it is checking the PGA at
  the end of the output data to see if the page was built
  using DFHML1, but it is checking the wrong offset in the tioa.
  (A segmented write should only be performed for page data
  built using DFHML1).
  DFHTPR will check for the PGA in the wrong place if the data
  has been compressed in-situ to remove extended attributes
  from the datastream which are not supported by the destination
  terminal. The PGA is assumed to be at the end of the compressed
  data in the tioa, but it has not been shunted-up along with the
  data.
  The code which processes a segmented write assumes that R3
  (WORK2) addresses the WCC in the output tioa. It uses R3 to
  calculate the position in the output buffer into which the
  data will be copied. However, if the output datastream
  contains start field extended (SFE) orders (which should only
  be the case if the page was built using DFHM32) R3 will not
  address the WCC but will point 3 bytes before the trailing SAA
  of the output tioa. This causes storage overlays when the data
  is copied past the end of the output buffer.
  Additional keywords: MSGDFHSM0002 SM0002
  

Problem conclusion

• DFHTPR has been altered to ensure that the PGA is moved to
  the end of the compressed data in the tioa. This means that
  a segmented write will only be performed, as intended, for
  BMS pages built using DFHML1. In this case there should be
  no SFE orders included in the datastream, so R3 will still
  address the WCC in the tioa when the data is copied into the
  output buffer for the segmented write.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PK15797

• APAR is sysrouted TO one or more of the following:

  UK11079

Modules/Macros

•    DFHTOM   DFHTPR
  

Fix information

• Fixed component name

  CICSTS 3.1 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK11079

     UP06/01/27 P F601

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.